3 people saw what looked like 1 star/planet moving slowly back and forth in the sky. After a few minutes it broke into 3 separate objects/lights into a triangular pattern. These moved about a little, and seemed to appear green and red as well as white. It then appeared to come together and become one again. This light seemed to change between white, green and red while very slowly moving about the sky, though not straying far from the original location. Without a point of reference it was difficult to detect the movement. We watched this for about 20 minutes, went inside for a 2-3 hours, when we went back out it was gone.